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Patent applications and USPTO patent grants for Ren; Zhangyu.The latest application filed is for "automatic coal mining machine and fluidized coal mining method".
Patent | Date |
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Automatic coal mining machine and fluidized coal mining method Grant 11,391,151 - Ju , et al. July 19, 2 | 2022-07-19 |
Automatic Coal Mining Machine And Fluidized Coal Mining Method App 20210340870 - JU; Yang ;   et al. | 2021-11-04 |
Mine field layout method suitable for fluidized mining of coal resources Grant 10,975,694 - Ju , et al. April 13, 2 | 2021-04-13 |
Mine Field Layout Method Suitable For Fluidized Mining Of Coal Resources App 20210003008 - JU; Yang ;   et al. | 2021-01-07 |
Transparent constraint apparatus for normal deformation of planar model Grant 10,731,962 - Ju , et al. | 2020-08-04 |
Method for measuring dynamic stress field evolution law of complex heterogeneous structure Grant 10,648,894 - Ju , et al. | 2020-05-12 |
Method For Measuring Dynamic Stress Field Evolution Law Of Complex Heterogeneous Structure App 20190368988 - JU; Yang ;   et al. | 2019-12-05 |
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